Epson B 1100 Service Manual

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 111
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4. Remove the Spacer from the EJ Roller Shaft.
5. Remove the guide pins on Left Bushing 8 from the Main Frame using tweezers, 
and turn Left Bushing 8 toward you to align with the notches on the Main Frame.
Figure 4-121. Removing the Spacer and Rotating the Left Bushing 8
6. Slide the Front Paper EJ Roller to the left, and remove the Left Bushing 8 from the 
Main Frame.
Figure 4-122. Removing the Left Bushing 87. Return the Carriage Unit to its home position.
8. Remove the C.B.S. M3 x 6 screw that secure the Left Front Frame.
9. Release the tab that secures the Front Paper Guide from the Main Frame and slide 
the Front Paper Guide to the left, and turn it until the front side faces up to remove 
the Front Paper Guide together with the Paper EJ Roller.
Figure 4-123. Removing the Front Paper Guide and Paper EJ Rollers
Insert the spacer into the groove on the Front Paper EJ Roller.
Guide 
pin
Spacer
Left Bushing 8
Notch
Groove
Front Paper EJ Roller
Tab
Paper EJ Rollers (Front side)Front Paper Guide
Paper EJ Rollers (Back side)
2) C.B.S. M3x62) C.B.S. M3x6
(8±1 kgf.cm)Left Front 
Frame 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 112
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10. Pull out the Shaft of the Left Front Frame from the bushing of the Front Paper 
Guide and remove the Left Front Frame.
Figure 4-124. Removing the Front Paper Guide/Paper EJ Rollers (2)
11. Remove the Front Paper Guide Pad Tray in the direction of the arrow.
Figure 4-125. Removing the Front Paper Guide Pad TrayDISASSEMBLING THE FRONT PAPER GUIDE PAD TRAY
1.Remove the Front Paper Guide Pad Tray in the direction of the arrow. (p.112)
2. Remove the four C.B.P. M 2 x 8 screws that secure the Front Paper Guide Pad 
Tray Cover Assy, and remove the Front Paper Guide Pad Tray Cover Assy from 
the Front Paper Guide Pad Tray.
3. Remove the three Waste Ink Pads (A, B and C shown below) from the Front Paper 
Guide Pad Tray.
Figure 4-126. Removing the Waste Ink Pad
Left Front Frame
Shaft
Bushing
Front Paper Guide
Front Paper Guide Pad Tray
Tabs and holes
Front Paper Guide Pad Tray
Front Paper Guide Pad 
Tray Cover Assy
16) C.B.P. M2x8 
(2±0.5 kgf.cm) Waste Ink Pad A
 Waste Ink Pad B
 Waste Ink Pad C 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 113
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Engage the two tabs of the Front Paper Guide Pad Tray with 
the holes of the Front Paper Guide as shown in Figure 4-125.
Install the Waste Ink Pad A, B and C in the order shown below.
Figure 4-127. Reinstalling the Waste Ink Pads

When installing the Waste Ink Pads, make sure not to let the tab 
of the Front Paper Guide get caught between the Front Paper 
Guide Pad Tray Cover Assy and the Front Paper Guide. 
Confirm that the tab of the Front Paper Guide Pad touches the 
Waste Ink Pad A.
Figure 4-128. Reinstalling the Front Paper Guide Pad Tray
Step1
Step2
Step3
 Waste Ink Pad A
Front Paper Guide Pad Tray
 Waste Ink Pad B
 Waste Ink Pad C
TabFront Paper Guide Pad 
Tray Cover Assy Waste Ink Pad A
Do not peel off the Front Paper Guide Pad Tray Seal from the 
Front Paper Guide Pad Tray Cover Assy. If it is used after once 
peeled off or damaged, ink leakage may occur. Make sure to 
replace the Front Paper Guide Pad Tray Cover Assy with a new 
one when the seal is peeled off or damaged.
Figure 4-129. Handling for Front Paper Guide Pad Tray Seal
Align the bushing of the Front Paper Guide with the PF Roller 
Shaft.
Figure 4-130. The PF Roller Shaft and the bushing of the Front 
Paper Guide
Back side
Front Paper Guide Pad 
Tray Cover Assy
Front Paper Guide Pad 
Tray Seal
Shaft and bushing 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 114
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Align the positioning holes on the Main Frame with the guide 
pins on the Front Paper Guide.
Figure 4-131. Reinstalling the Front Paper Guide
After installing the Front Paper Guide, lift the Printer 
Mechanism to check the following points.
1. Make sure that the tabs on the Paper Guide Pad are not cut 
midway.
2. Make sure that all the tabs are facing down (toward the Waste 
Ink Pads) without any folds.
3. Make sure that the tab foldbacks are protruding completely 
from the Front Paper Guide.
Figure 4-132. Checking the Front Paper Guide Pad
Guide pins
TabsTabs
Tabs




After replacing the following parts, be sure to apply G-45 grease to the 
area specified for each part.
EJ Grounding Spring: See Figure 6-8 on page 157.
Front Paper Guide and Paper EJ Roller: See Figure 6-9 on 
page 157.




After replacing or removing the Front Paper Guide and Paper EJ 
Roller, always make the required adjustments referring to the 
following.
“Chapter 5 Adjustment (p.128)” 
						

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4.4.15  PF Roller Shaft
1.Remove the PF Encoder. (p.124)
2.Remove the Upper Paper Guide Assys. (p.118)
3. Loosen the two C.C. M3 x 4 screws that secure the PF Motor, and remove the PF 
Drive Belt from the PF Motor Pinion Gear.
4. Remove the spacer that secures Spur Gear 31.5, and remove Spur Gear 31.5 from 
the Printer Mechanism.
Figure 4-133. Removing the PF Drive Belt and Spur Gear 31.55. Remove the PG Grounding Spring from the notch on the Main Frame, and remove 
the PF Grounding Spring from the groove on the PF Roller Shaft.
Figure 4-134. Removing the PF Grounding Spring
6. Make sure that the Left Parallelism Adjust Bushing is not protruding from the 
notch on the Main Frame. If it is protruding, loosen the C.B.S. (P4) M3 x 8 screw 
that secures the Left Parallelism Adjust Bushing, and slide it to prevent the Left 
Parallelism Adjust Bushing from becoming hooked on the notch.
Figure 4-135. Rotating the Left Parallelism Adjust Bushing
PF Drive Belt
PF Motor Pinion Gear
11) C.C. M3x4
(4±0.5 kgf.cm)
Spur Gear 31.5
Spacer
PF Grounding Spring
Rear
Notch
PF Roller ShaftGroove
Left Parallelism 
Adjust Bushing
Notch
6) C.B.S. (P4) M3x8
(5±1 kgf.cm) 
						

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Disassembly And Assembly Disassembling the Printer Mechanism 116
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7. Remove the guide pin of Left Bushing 8 from the Main Frame using tweezers, and 
rotate the Bushing upwards to align with the notch on the Main Frame.
Figure 4-136. Rotating the Left Bushing 8
8. Remove the E-ring from the PF Roller Shaft with a flathead screwdriver, and slide 
Left Bushing 8 to the inside of the Printer Mechanism.
Figure 4-137. Removing the Left Bushing 89. Remove the PF Roller Shaft from the Bushings on the Rear Paper Guide and the 
Center Support, slide the PF Roller Shaft to the left to remove it from Right 
Bushing 8, and remove the PF Roller Shaft along the notch of the Main Frame.
Figure 4-139. Removing the PF Roller Shaft
When performing the following procedure, take care not to lose the 
E-ring.
Left Bushing 8Guide pin
Notch
E-Ring
PF Roller Shaft
When performing the following procedure, pay attention to the 
following points.
Prevent the coated surface of the PF Roller Shaft from being 
scratched.
Do not touch the coated surface of the PF Roller Shaft with 
bare hands.
Figure 4-138. Handling the PF Roller Shaft
Coating Part
Rear Paper Guide
Bushings
Notch
Center Support
Right Bushing 8 
						

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4.4.16  Release Holder Assy
1.Remove the APG Assy. (p.78)
2. Release the PE Sensor connector cable from the five tabs on the Release Holder 
Assy.
3. Remove the three C.B.S. M3 x 6 screws that secure the Release Holder Assy.
4. Remove the three lower tabs of the Release Holder Assy from the Main Frame 
with a flathead screwdriver, and remove the Release Holder Assy upwards.
Figure 4-141. Removing the Release Holder Assy
Be careful not to move Compression Spring 4 and the Leaf Spring 
on the left side of the PF Roller Shaft to the coated section on the 
Shaft after removing the PF Roller Shaft.
Figure 4-140. Handling the PF Roller Shaft




After replacing the PF Roller Shaft, always make the required 
adjustments referring to the following.
“Chapter 5 Adjustment (p.128)”




After replacing the following parts, be sure to apply G-45 grease to the 
area specified for each part.
PF Roller Shaft: Chapter 6 See Figure 6-10 (p.157) - Figure 
6-12 (p.158)
Compression Spring 4
Leaf spring
Align the three upper tabs on the Release Holder Assy with the 
positioning holes on the Main Frame. See Figure 4-141 (p.117)
Tighten the screws in the order shown in Figure 4-141
2) C.B.S. M3x6
(8±1 kgf.cm)
123
PE Sensor connector cableTabs
Release Holder Assy
Rear side
Upper Tabs
Lower Tabs
Front side 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 118
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4.4.17  Upper Paper Guide Assys
1.Remove the PE Sensor Holder. (p.126)
2. Pass a sheet of A3 size paper into the gap between the Upper Paper Guide Assy 
and the Rear Paper Guide.
Figure 4-142. Setting the Paper3. Remove the six Upper Paper Guide Torsion Springs from the tabs on the Main 
Frame, and pull out the Upper Paper Guide Torsion Springs from the six Upper 
Paper Guide Assys.
Figure 4-143. Removing the Upper Paper Guide Torsion Spring
A3-size paper
Rear Paper Guide
Upper Paper Guide 
Torsion SprigTab
Upper Paper Guide Assys
Tabs
Upper Paper Guide Assys 
						

							WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Disassembly And Assembly Disassembling the Printer Mechanism 119
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4. Lift the six Upper Paper Guide Assys from the Main Frame to release the shaft 
referring to Figure 4-144, and remove the Upper Paper Guide Assys to the rear.
Figure 4-145. Removing the Upper Paper Guide Assy
Make sure that the leading end of the Upper Paper Guide Torsion 
Spring can be seen through the hole of the Upper Paper Guide Assy.
Figure 4-144. Reinstalling the Upper Paper Guide Torsion Spring
Hole
Upper Paper Guide 
Torsion Sprig
ShaftShaft 
						

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Disassembly And Assembly Removing the Motors 120
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4.5  Removing the Motors
4.5.1  CR Motor
1.Remove the ASF Assy. (p.96)
2. Release the Carriage Lock, and move the Carriage Unit to the center. (Refer to 4.1.5 
Locking/Releasing the Carriage (p.65).)
3. Remove the two Clamps. (Refer to 4.4.13 Ink System Unit (p.107).)
4. Disconnect the CR Motor connector cable from the connector CN115 on the Main 
Board.
5. Remove the CR Motor connector cable from the Cord Keep.
Figure 4-146. Removing the CR Motor connector cable
Cord Keep
CN115
Main BoardCR Motor connector cable
Attach two pieces of acetate tape (18 mm) on the Upper Shield 
Plate.
Figure 4-147. Attaching acetate tape
Route the cables as shown below.
Figure 4-148. Routing the cables
Acetate tape (18mm)Acetate tape (18mm)
30mm ± 5mm
Relay connector cable
Route the relay connector 
cable over the Pump 
Motor cable.CR Motor connector cable
Pump Motor cable